They were placed one on top of another in a circular shape.

VOA: special.2011.05.18

you have to be in your top shape,

你必须保持最好的身材状态，

保持身材的理由 - SpeakingMax英语口语达人

We'll shape like a puzzle piece that will allow me to go to the looks palette at top left and it's pretty self-explanatory.

我们将制作出一个拼图,让我去寻找左上角的调色板,它非常明显。

哈佛公开课 - 计算机科学课程节选